Nernst Equation Calculator: Determine Cell Potential (Ecell) and More

Nernst Equation Calculation Tool

V
The potential under standard conditions (1 M, 1 atm, 298.15 K).
K
Temperature in Kelvin.
Moles of electrons transferred in the balanced reaction.
Ratio of products to reactants at non-equilibrium.
J/(mol·K)
Ideal Gas Constant (fixed).
C/mol
Faraday's Constant (fixed).

Results

The Cell Potential (Ecell) under these non-standard conditions is:

Error!

Quickly calculate the cell potential (Ecell), reaction quotient (Q), or temperature (T) for any electrochemical reaction using our free Nernst Equation Calculator. Understand how non-standard conditions affect redox reactions and predict reaction spontaneity effortlessly. Ideal for students, researchers, and professionals in chemistry and electrochemistry.

Formula:

The Nernst Equation relates the cell potential (Ecell) to the standard cell potential (Eocell) and the reaction quotient (Q) under non-standard conditions. Its formula is:

Ecell = Eocell - (RT/nF)lnQ

  • Ecell: Cell potential under non-standard conditions (Volts)
  • Eocell: Standard cell potential (Volts)
  • R: Ideal gas constant (8.314 J/(mol·K))
  • T: Temperature in Kelvin
  • n: Number of moles of electrons transferred in the reaction (dimensionless)
  • F: Faraday constant (96485 C/mol)
  • lnQ: Natural logarithm of the reaction quotient (Q)

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